:root {
  --accent: #2d6bff;
  --accent-deep: #1b4fd6;
  --accent-glow: rgba(45, 107, 255, 0.35);
  --ink: #0d1b2a;
  --ink-2: #41566b;
  --ink-3: #7488a0;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --line: #e4ebf3;
  --radius: 16px;
  --maxw: 1080px;
  --shadow: 0 18px 50px -22px rgba(13, 27, 42, 0.32);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-deep); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(160%) blur(14px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -0.02em; color: var(--ink); }
.brand .bolt {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff; font-size: 16px; box-shadow: 0 6px 16px -4px var(--accent-glow);
}
.nav-links { display: flex; gap: 26px; align-items: center; font-size: 15px; font-weight: 600; color: var(--ink-2); }
.nav-links a { color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }
@media (max-width: 620px) { .nav-links { display: none; } }

/* ---- hero ---- */
.hero { position: relative; overflow: hidden; padding: 86px 0 70px; background: radial-gradient(1200px 480px at 50% -120px, #eaf1ff 0%, var(--bg) 62%); }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-deep);
  background: #e9f0ff; border: 1px solid #d4e1ff; padding: 7px 14px; border-radius: 999px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 62px); line-height: 1.04; letter-spacing: -0.03em;
  margin: 22px 0 18px; font-weight: 850; max-width: 760px;
}
.hero h1 .grad { background: linear-gradient(120deg, var(--accent), #7aa0ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub { font-size: clamp(17px, 2.3vw, 21px); color: var(--ink-2); max-width: 600px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 16px;
  padding: 14px 24px; border-radius: 13px; border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-deep)); color: #fff; box-shadow: 0 14px 30px -12px var(--accent-glow); }
.btn-primary:hover { color: #fff; transform: translateY(-1px); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { color: var(--ink); border-color: #cdd8e6; }
.note { font-size: 13.5px; color: var(--ink-3); margin-top: 14px; }

/* ---- sections ---- */
section { padding: 72px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.025em; font-weight: 820; }
.section-head p { color: var(--ink-2); font-size: 18px; margin-top: 12px; }
.soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---- feature grid ---- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 860px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: .18s; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #d7e2f1; }
.card .ico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; background: #eef3ff; margin-bottom: 16px; }
.card h3 { font-size: 19px; letter-spacing: -0.01em; margin-bottom: 7px; }
.card p { color: var(--ink-2); font-size: 15.5px; }

/* ---- steps ---- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-left: 56px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0; width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep)); box-shadow: 0 8px 18px -8px var(--accent-glow);
}
.step h3 { font-size: 18px; margin-bottom: 5px; }
.step p { color: var(--ink-2); font-size: 15.5px; }

/* ---- cta band ---- */
.cta-band { text-align: center; }
.cta-band .inner {
  background: linear-gradient(135deg, #16233a, #0d1b2a); color: #fff;
  border-radius: 24px; padding: 56px 28px; box-shadow: var(--shadow);
}
.cta-band h2 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -0.025em; }
.cta-band p { color: #aebfd6; margin: 12px auto 26px; max-width: 480px; font-size: 18px; }

/* ---- footer ---- */
footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--ink-3); font-size: 14.5px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }
footer .f-links { display: flex; gap: 22px; }
footer .f-links a { color: var(--ink-2); font-weight: 600; }

/* ---- legal / doc pages ---- */
.doc { padding: 56px 0 72px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font-size: clamp(30px, 5vw, 42px); letter-spacing: -0.03em; margin-bottom: 8px; }
.doc .updated { color: var(--ink-3); font-size: 14.5px; margin-bottom: 36px; }
.doc h2 { font-size: 21px; margin: 34px 0 10px; letter-spacing: -0.01em; }
.doc p, .doc li { color: var(--ink-2); font-size: 16px; margin-bottom: 12px; }
.doc ul { padding-left: 22px; margin-bottom: 12px; }
.doc li { margin-bottom: 7px; }
.doc a { font-weight: 600; }
.back { display: inline-flex; align-items: center; gap: 7px; font-weight: 600; font-size: 15px; margin-bottom: 26px; }
.faq { border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 22px; margin-top: 8px; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq details:last-child { border-bottom: none; }
.faq summary { font-weight: 700; cursor: pointer; font-size: 16.5px; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--ink-3); font-weight: 700; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin-top: 10px; margin-bottom: 0; }